Acquired supravalvar membranous stenosis of the left atrioventricular valve developed in a nine year old boy with atrioventricular discordance. The supravalvar membrane had not been present when a ...

Cleft lip and cleft palate (CL/CP) are the most commonly occurring craniofacial birth defects. Although some CL/CPs are detected on prenatal ultrasound, the majority are immediately recognized in ...